Erythranthe decora |
Erythranthe corallina |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
coralline monkeyflower |
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Habit | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. | Perennials, rhizomatous, rhizomes often forming a mass, usually branching, filiform. |
Stems | erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
usually erect to ascending-erect, few-branched, 6–25(–38) cm, moderately hirsute to hirtellous, hairs deflexed. |
Leaves | cauline, basal usually not persistent; petiole: proximals 8–25 mm, midcauline 3–5 mm, distalmost 0 mm; blade palmately (3–)5–7-veined, broadly ovate-triangular to ovate-lanceolate, 20–50(–60) × 10–30(–40) mm, usually 1–2 times longer than wide, base rounded to truncate to shallowly cuneate, margins dentate, teeth sharp-pointed, apex acute, surfaces sometimes glabrate, distals densely, minutely hirtellous. |
basal and cauline, becoming larger distally or even-sized; petiole 0 mm or proximals 1–15 mm; blade palmately 5-veined, ovate to broadly ovate, 15–45 mm, base mostly truncate to shallowly cordate, margins sharply dentate-serrate, apex obtuse, surfaces hirtellous to softly hirsute, hairs ascending, straight, dull gray, sharp-pointed, thick-walled, eglandular. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
herkogamous, 1–3(–6), commonly solitary or from distal nodes. |
Styles | minutely, prominently hirsutulous to villosulous. |
sparsely hirtellous. |
Corollas | yellow to chrome yellow, throat floor and tube usually red-spotted, bilaterally symmetric, bilabiate; tube-throat broadly funnelform, 18–26 mm, exserted (8–)10–15 mm beyond calyx margin; limb expanded 22–30 mm. |
yellow, red-spotted, bilaterally symmetric, bilabiate; tube-throat narrowly funnelform to broadly cylindric, 13–20 mm, exserted beyond calyx margin; limb expanded 12–22 mm. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
(10–)25–75 mm, glabrous or puberulent proximally, hairs stipitate-glandular. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
sometimes purple-spotted, broadly cylindric-campanulate, inflated, sagittally compressed, 11–15 mm, glabrous, throat not closing, proximal lobe pair slightly upcurving. |
Capsules | included, 8–10 mm. |
included, stipitate, 7–10 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 48, 56. |
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Erythranthe decora |
Erythranthe corallina |
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Phenology | Flowering May–Aug. | Flowering (May–)Jun–Aug. |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Creek banks, moraine water courses, bogs, marshes, wet meadows, roadside ditches. |
Elevation | 1000–1600 m. (3300–5200 ft.) | (1400–)1700–2700(–3000) m. ((4600–)5600–8900(–9800) ft.) |
Distribution |
ID; OR; WA; BC
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CA; NV |
Discussion | Erythranthe decora is distinct in its uniformly ovate to ovate-lanceolate leaf blades with truncate bases and regularly toothed margins, relatively long internodes, rhizomatous habit, mostly unbranched stems, often with leafy runners from basal nodes, large corollas, hairy styles, and minutely hirtellous stems, pedicels, calyces, and leaf surfaces. The densely produced rhizomes suggest a relationship with the E. tilingii group. A population in Clearwater County, Idaho, appears to be long-disjunct from the main range of the species in northwestern Oregon and the western half of Washington. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe corallina is a morphologically consistent entity that occurs only in the Sierra Nevada of California and adjacent Nevada (Washoe County and Carson City). Its chromosome number is reported as 2n = 48 and 56, compared to 2n = 28 and 56 in E. tilingii; identities of the E. corallina vouchers should be rechecked and additional counts made, since the occurrence of such wide dysploidy seems unlikely. Compared to the leaf blades of E. tilingii in the strict sense, those of E. corallina are relatively broader (broadly ovate to orbicular-ovate), the plants generally taller, and long-pedicellate flowers occasionally are produced from mid stem or even proximal nodes. The hirsutulous to hirsute vestiture of eglandular hairs on both leaf surfaces is a reliably diagnostic feature and usually easily observed with a 10× lens. Some plants of Erythranthe corallina from San Bernardino County, California, produce decumbent-ascending stems (4–10 cm) and ovate-triangular leaves (blade 5–10 × 3–6 mm), but the dense system of filiform rhizomes, flowers one to three, and hirtellous foliar vestiture serve to identify them. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 410. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus guttatus var. decorus, M. decorus | Mimulus corallinus, M. minusculus, M. tilingii var. corallinus |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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